Method for calibration of a printer

A method for calibrating a first image processing apparatus at a first location with a control image processing apparatus at a second location, wherein the method comprises the steps of:

• a. preparing a calibration curve of exposure level versus density for a plurality of shipped thermal donors;
• b. computing an exposure modification curve by comparing a control thermal receiver to the shipped thermal receivers;
• c. transmitting the calibration curve to the first image processing apparatus;
• d. transmitting the exposure modification curve to the first image processing apparatus;
• and
• e. adjusting the first image processing apparatus exposure levels to conform to the calibration curve and the exposure modification curve.

The method of 14, further comprising the steps of

• a. loading a first layered assembly onto the first image processing apparatus, wherein the first layered assembly comprises a first thermal donor comprising a first exposure calibration curve measured from the control image processing apparatus, wherein the first thermal donor is disposed on a first thermal receiver;
• b. imaging a target on the first layered assembly using the first image processing apparatus and forming a first image;
• c. scanning the first image into host software on the first image processing apparatus and forming a first exposure calibration curve for the first image processing apparatus;
• d. calculating an exposure lookup curve by plotting the first exposure calibration curve for the first image processing apparatus against the first exposure calibration curve for the control image processing apparatus;
• e. loading a second layered assembly onto the first image processing apparatus, wherein the second layered assembly comprises a second thermal donor comprising a second exposure calibration curve measured from the control image processing apparatus, and wherein the second thermal donor is disposed on a second thermal receiver;
• and
• f. applying the exposure lookup curve to the second exposure calibration curve measured from the control image processing to form a second exposure calibration curve for the first image processing apparatus;
• g. calculating an exposure modification curve by using the second exposure modification curve from control image processing apparatus and the first exposure modification curve from the control image processing apparatus;
• h. adjusting the second exposure calibration curve for the first image processing apparatus using the exposure modification curve to create a resultant exposure calibration curve, wherein the resultant exposure calibration curve is applied to the first image processing apparatus for use with the second layered assembly;
• and
• i. adjusting the first image processing apparatus exposure levels to conform to the calibration curve and the exposure modification curve.